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Elements Of Remote Sensing

Elements Of Remote Sensing
Which one of the following quantities forms the basis of radiometry?

All of these
Radiant intensity (I)
Radiant flux (φ)
Radiant energy (Q)

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Elements Of Remote Sensing
Which one of the following frequency regions is a part of sun's radiation?

Ultraviolet frequency region
Radio frequency region
Infrared frequency region
All of these

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Elements Of Remote Sensing
Consider the following statements regarding the satellite imaging: 1. The satellite orbit is fixed in the inertial space 2. During successive across-track imaging, the earth rotates beneath the sensor 3. The satellite images a skewed areaWhich one of the following statements is/are correct?

2, 3
1, 2, 3
1, 3
1, 2

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Elements Of Remote Sensing
Rayleigh's criteria for a rough surface is: (where letters carry their usual meanings).

h > λ/8 cos θ
h < λ/8 cos θ
h = λ/8 cos θ
h > λ/Δ cos θ

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Elements Of Remote Sensing
Coherence of two electromagnetic waves takes place if their phase difference is:

Constant in time
None of these
Constant in time and space
Constant in space

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Elements Of Remote Sensing
For interpolation of satellite data used for monitoring dynamic changes that occurs on the earth surface, the most suitable orbit for the satellite is:

Circular orbit
Sun-synchronous orbit
Near polar orbit
None of these

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